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The frequency of a wave of light is 12x 10 14s-1. The wave number associated with this light is:
(1) 5x10-7m
(2) 4x 10 -8 cm-1
(3) 2x 10-7 m-1
(4)4x10 4cm-1
Ans: 4x10 4cm-1
Q. An aqueous solution of the protein bovine serum albumin, containing 2:00 x 10 -2 g of protein per cubic centimeter, has an osmotic pressure of 8.1 x 10 -3 bar at 0 C. Estim
chemistry and mechanism of action
Which of the following halides has maximum melting point: (1) NaCl (2) NaBr (3) Nal (4
Dielectric loss: These losses occur because of electrons hopping from single lattice site to another in transition metal oxides.
If 8686 C of charge is passed through molten magnesium chloride, calculate the number of moles of Mg(l) produced
Uses of phosphoric acid
The following has zero valency : (1) Sodium (2) Beryllium (3) Aluminium (4) Krypton Ans: Krypton
Atoms in the water molecule are linked by: (1) Electrovalent bond (2)Covalent bond (3) Coordinate covalent bond (4) Odd electron bond Ans: Cov
has gold a chemical proporties show/
A completely filled d -orbital ( d 10 ): (1) Spherically symmetrical (2) Has octahedral symmetry (3) Has tetrahedral symmetry (4) Depends on the atom Ans: Spherical
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